Anxiety in Response to Sustaining Spinal Cord Injuries and Disorders: When Should Clinicians Be Concerned?

Objective: To recommend a cut-off score for the brief 2-item Generalized Anxiety Disorder (GAD-2) measure for persons with spinal cord injuries/disorders (PwSCI/D) and to estimate anxiety occurrence within this population using the full 7-item Generalized Anxiety Disorder (GAD-7).

Design: Multicenter retrospective analyses.

Setting: One inpatient rehabilitation center and 2 community sites for PwSCI/D.

Participants: PwSCI/D 18 years or older (N=909) were included for analysis using retrospectively collected GAD-2 and GAD-7 data.

Interventions: Not applicable.

Main Outcome Measure(s): Occurrence of anxiety symptoms were compared using cut-off scores of ≥8 and ≥10 on the GAD-7. A cut-off score recommendation for the GAD-2 was determined using ROC curve, and sensitivity and specificity analyses.

Results: Occurrence of anxiety symptoms was 21% using a GAD-7 cut-off of ≥8 and 15% using a cut-off of ≥10. Analyses indicated optimal sensitivity for a GAD-2 score of ≥2 when a GAD-7 cut-off of ≥8 was used.

Conclusions: Anxiety occurrence is elevated among PwSCI/D compared with the general population. For PwSCI/D, it is recommended that a cut-off score of ≥2 is used for the GAD-2 to maximize sensitivity and that a threshold of ≥8 is used for the GAD-7 to ensure the maximum number of individuals presenting with symptoms of anxiety are recognized for diagnostic interview. Study limitations are discussed.